MM74HC74AM

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MM74HC74AM

D FLIP-FLOP, HC/UH SERIES, 2-FUN

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Specifications

Supplier Rochester Electronics, LLC
Package Bulk
Series 74HC
ProductStatus Active
Function Set(Preset) and Reset
Type D-Type
OutputType Complementary
NumberofElements 2
NumberofBitsperElement 1
ClockFrequency 94 MHz
MaxPropagationDelay@VMaxCL 19ns @ 6V, 50pF
TriggerType Positive Edge
Current-OutputHighLow 5.2mA, 5.2mA
Voltage-Supply 2V ~ 6V
Current-Quiescent(Iq) 4 µA
InputCapacitance 5 pF
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
SupplierDevicePackage 14-SOIC

Overview

Description

The MM74HC74AM is a dual D-type, positive-edge-triggered flip-flop from the 74HC CMOS family. It provides two independent flip-flops (D1→Q1, D2→Q2) with separate clocks (CLK1, CLK2) and asynchronous active-low preset (PR) and clear (CLR) inputs. On the rising edge of each clock, the corresponding Q output takes the value of its D input. If PR is asserted low, the corresponding Q is set high; if CLR is asserted low, Q is cleared low, regardless of D or clock.
Key points:
- Dual 1-bit memory with Q and Q̅ outputs
- Asynchronous PR and CLR for each flip-flop
- Operates from about 2 to 6 V (commonly 5 V)
- Used for synchronous storage, counters, shift registers, toggling, and data transfer
- 14-pin package (AM variant commonly in SOIC/DIP styles)
Check the exact timing specs (setup/hold times, propagation delay) and device pinout in the specific datasheet for your package variant.

Features

Concise features of MM74HC74AM:
- Dual D-type, positive-edge-triggered flip-flops
- Independent inputs: D1 with CP1 and D2 with CP2
- Asynchronous direct inputs: PRE and CLR for each flip-flop (active-low)
- Outputs: Q and Q̅ for each flip-flop
- Edge-triggered on rising clock edge
- CMOS HC family: Vcc = 2 to 6 V (typ. 4.5–5.5 V)
- Low power consumption and fast operation
- 14-pin package (AM variant: typical DIP/SOIC options)
- Suitable for data storage, frequency division, counters, and edge-triggered logic applications

Package

The MM74HC74AM comes in a 14-pin molded Small Outline IC package (SOIC).

Pinout

Pin count: 14 pins (14-pin package, e.g., DIP14/SOIC14).
Function: MM74HC74AM is a dual D-type positive-edge-triggered flip-flop with independent asynchronous preset (PRE) and clear (CLR) inputs. Each flip-flop has a D input, a clock input, a Q and Q̄ output, and asynchronous active-low PRE/CLR. It captures D on the rising clock edge and can be preset or cleared asynchronously.

Manufacturer

- Manufacturer: Monolithic Memories, Inc. (MMI).
- What kind of company: A semiconductor company that designed and manufactured integrated circuits (memory and logic). MMI was acquired by AMD in 1987.

Application

MM74HC74AM is a dual D-type flip-flop with asynchronous preset and clear (active-low) and positive-edge triggering.
Applications:
- Edge-triggered data storage registers
- Shift registers and simple memory elements
- Timing and sequencing in digital circuits
- Frequency division and clocked state machines
- Data synchronization and clock-domain crossing buffers

Equivalent

Equivalents (dual D-type flip-flop with async preset/clear):
- SN74HC74N (TI)
- MC74HC74 (Motorola/Onsemi)
- TC74HC74 (Toshiba)
- 74HCT74N (TTL-compatible)
- SN74LS74N (LS TTL)
These are functionally similar across vendors.

Shipping

Shipping MethodsWe

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

Currently, we only accept the below payment methods:

1. PayPal

2. Credit/ Debit Card

3. Wire Transfer

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